Year % 1993 0.0630205 1997 0.0186393 2000 0 2001 0 2002 0 2003 0 2005 0 2006 1.459462 2007 0 2008 0.1319527 2009 0 2010 0 2011 0 2012 0 2014 0.0172272 2015 0 2016 0 2017 0 2019 0 2020 0 2021 0